diff options
| author | Anton Khirnov <anton@khirnov.net> | 2011-02-09 21:55:56 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2011-02-11 02:54:10 +0100 |
| commit | 4ca29c6534eff7cd1fda521800e52e14a16d3e0e (patch) | |
| tree | 8746b1fbdcb4e26380216b85ce45b3d30963a674 /libavformat | |
| parent | e5d4a95334341b5e627df5aa10f07298957071b4 (diff) | |
asfdec: deobfuscate reading video properties size
This code will be later split out into a function which takes a 'size'
argument, so I'm keeping the name 'sizeX' here.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 0b1d291a716dd79ca6862a95baf9ac574feba885)
Diffstat (limited to 'libavformat')
| -rw-r--r-- | libavformat/asfdec.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c index cd051ad51a..0ee6667a27 100644 --- a/libavformat/asfdec.c +++ b/libavformat/asfdec.c @@ -398,7 +398,7 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap) ByteIOContext *pb = s->pb; AVStream *st; ASFStream *asf_st; - int size, i; + int i; int64_t gsize; ff_get_guid(pb, &g); @@ -559,7 +559,7 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap) get_le32(pb); get_le32(pb); get_byte(pb); - size = get_le16(pb); /* size */ + get_le16(pb); /* size */ sizeX= get_le32(pb); /* size */ st->codec->width = get_le32(pb); st->codec->height = get_le32(pb); @@ -569,9 +569,8 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap) tag1 = get_le32(pb); url_fskip(pb, 20); // av_log(s, AV_LOG_DEBUG, "size:%d tsize:%d sizeX:%d\n", size, total_size, sizeX); - size= sizeX; - if (size > 40) { - st->codec->extradata_size = size - 40; + if (sizeX > 40) { + st->codec->extradata_size = sizeX - 40; st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); get_buffer(pb, st->codec->extradata, st->codec->extradata_size); } |